UCLA BOTANICAL GARDEN BORING B-1 SUSPENSION P & S VELOCITIES

July 30, 2004

UCLA BOTANICAL GARDEN BORING B-1 SUSPENSION P & S VELOCITIES

Prepared for Kinemetrics, Inc. 222 Vista Avenue Pasadena, California 91107 (626) 795-2220

Prepared by GEOVision Geophysical Services 1151 Pomona Road, Unit P Corona, California 92882 (909) 549-1234 Project 4438

July 30, 2004 Report 4438-01

TABLE OF CONTENTS INTRODUCTION............................................................................................................. 1

SCOPE OF WORK ......................................................................................................... 2

SUSPENSION INSTRUMENTATION ............................................................................. 3

SUSPENSION MEASUREMENT PROCEDURES.......................................................... 6

SUSPENSION DATA ANALYSIS ................................................................................... 7

SUSPENSION RESULTS ............................................................................................... 9

SUMMARY Discussion of Suspension Results .................................................................................. 9 Quality Assurance ......................................................................................................... 10 Data Reliability .............................................................................................................. 10

i

FIGURES Figure 1. Concept illustration of P-S logging system.................................................... 11 Figure 2. Example of filtered (1400 Hz lowpass) record............................................... 12 Figure 3. Example of unfiltered record ......................................................................... 13 Figure 4. Boring B-1, Suspension P- and SH-wave velocities....................................... 14

TABLES Table 1. Boring location and logging date ...................................................................... 2 Table 2. Logging date and depth range ......................................................................... 6 Table 3. Boring B-1, Suspension R1-R2 depth, pick times, and velocities................... 15

ii

APPENDICES

APPENDIX A: Suspension velocity measurement quality assurance suspension source to receiver analysis results

APPENDIX A FIGURES Figure A-1.

Boring B-1, R1 - R2 high resolution analysis and S-R1 quality assurance analysis P- and SH-wave data.................................................................A-2 APPENDIX A TABLES

Table A-1.

Boring B-1, R1 - R2 high resolution analysis and S-R1 quality assurance analysis P- and SH-wave data.................................................................A-3

APPENDIX B: OYO Model 170 suspension velocity logging system NIST traceable calibration procedure

iii

INTRODUCTION OYO suspension velocity measurements were performed in one land boring in the UCLA Botanical Garden parking lot. Suspension logging data acquisition was performed on July 15, 2004 by John Diehl of GEOVision.

The work was performed under subcontract with

Kinemetrics for the University of California, Los Angeles, with Sandy Jack as the field liaison for the University. This report describes the field measurements, data analysis, and results of this work.

1

SCOPE OF WORK This report presents the results of suspension velocity measurements collected on July 15, 2004, in the uncased boring designated B-1, as detailed below. The purpose of this study was to supplement stratigraphic information obtained during UCLA’s soil sampling program and to acquire shear wave velocities and compressional wave velocities as a function of depth, which, in turn, can be used to characterize ground response to earthquake motion.

BORING

DATE

GENERAL

DESIGNATION

LOGGED

LOCATION

B-1

7/15/04

UCLA BOTANICAL GARDEN PARKING LOT

COORDINATES NA

NA

Table 1. Boring locations and logging dates The OYO Model 170 Suspension Logging Recorder and Suspension Logging Probe were used to obtain in-situ horizontal shear and compressional wave velocity measurements at 1.64 ft intervals. The acquired data was analyzed and a profile of velocity versus depth was produced for both compressional and horizontally polarized shear waves. A detailed reference for the velocity measurement techniques used in this study is: Guidelines for Determining Design Basis Ground Motions, Report TR-102293, Electric Power Research Institute, Palo Alto, California, November 1993, Sections 7 and 8.

2

SUSPENSION INSTRUMENTATION Suspension soil velocity measurements were performed using the Model 170 Suspension Logging system, manufactured by OYO Corporation.

This system directly determines the

average velocity of a 3.28 ft high segment of the soil column surrounding the boring of interest by measuring the elapsed time between arrivals of a wave propagating upward through the soil column. The receivers that detect the wave, and the source that generates the wave, are moved as a unit in the boring producing relatively constant amplitude signals at all depths. The suspension system probe consists of a combined reversible polarity solenoid horizontal shear-wave source (SH) and compressional-wave source (P), joined to two biaxial receivers by a flexible isolation cylinder, as shown in Figure 1. The separation of the two receivers is 3.28 ft, allowing average wave velocity in the region between the receivers to be determined by inversion of the wave travel time between the two receivers. The total length of the probe as used in this survey is 19 ft, with the center point of the receiver pair 12.1 ft above the bottom end of the probe. The probe receives control signals from, and sends the amplified receiver signals to, instrumentation on the surface via an armored 7 conductor cable. The cable is wound onto the drum of a winch and is used to support the probe. Cable travel is measured to provide probe depth data. The entire probe is suspended by the cable and centered in the boring by nylon "whiskers", therefore, source motion is not coupled directly to the boring walls; rather, the source motion creates a horizontally propagating impulsive pressure wave in the fluid filling the boring and surrounding the source. This pressure wave is converted to P and SH-waves in the surrounding soil and rock as it impinges upon the boring wall. These waves propagate through the soil and rock surrounding the boring, in turn causing a pressure wave to be generated in the fluid surrounding the receivers as the soil waves pass their location. Separation of the P and SH-waves at the receivers is performed using the following steps:

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1. Orientation of the horizontal receivers is maintained parallel to the axis of the source, maximizing the amplitude of the recorded SH -wave signals. 2. At each depth, SH-wave signals are recorded with the source actuated in opposite directions, producing SH-wave signals of opposite polarity, providing a characteristic SH-wave signature distinct from the P-wave signal. 3. The 7.02 ft separation of source and receiver 1 permits the P-wave signal to pass and damp significantly before the slower SH-wave signal arrives at the receiver. In faster soils or rock, the isolation cylinder is extended to allow greater separation of the P- and SH-wave signals. 4. In saturated soils, the received P-wave signal is typically of much higher frequency than the received SH-wave signal, permitting additional separation of the two signals by low pass filtering. 5. Direct arrival of the original pressure pulse in the fluid is not detected at the receivers because the wavelength of the pressure pulse in fluid is significantly greater than the dimension of the fluid annulus surrounding the probe (meter versus centimeter scale), preventing significant energy transmission through the fluid medium. In operation, a distinct, repeatable pattern of impulses is generated at each depth as follows: 1. The source is fired in one direction producing dominantly horizontal shear with some vertical compression, and the signals from the horizontal receivers situated parallel to the axis of motion of the source are recorded. 2. The source is fired again in the opposite direction and the horizontal receiver signals are recorded. 3. The source is fired again and the vertical receiver signals are recorded. The repeated source pattern facilitates the picking of the P and SH-wave arrivals; reversal of the source changes the polarity of the SH-wave pattern but not the P-wave pattern. The data from each receiver during each source activation is recorded as a different channel on the recording system. The Model 170 has six channels (two simultaneous recording channels), each with a 12 bit 1024 sample record. The recorded data is displayed on a CRT display and on paper tape output as six channels with a common time scale. Data is stored on 3.5 inch floppy diskettes for further processing. Up to 8 sampling sequences can be summed to improve the signal to noise ratio of the signals.

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Review of the displayed data on the CRT or paper tape allows the operator to set the gains, filters, delay time, pulse length (energy), sample rate, and summing number to optimize the quality of the data before recording. Verification of the calibration of the Model 170 digital recorder is performed every twelve months using a NIST traceable frequency source and counter, as outlined in Appendix B.

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SUSPENSION MEASUREMENT PROCEDURES The borings was logged uncased, filled with bentonite based drilling fluid. The boring probe was positioned with the mid-point of the receiver spacing at grade, and the electronic depth counter was set to zero. The probe was lowered to the bottom of the boring, then returned to the surface, stopping at 1.64 ft intervals to collect data, as summarized below. At each measurement depth the measurement sequence of two opposite horizontal records and one vertical record was performed, and the gains were adjusted as required. The data from each depth was printed on paper tape, checked, and recorded on diskette before moving to the next depth. Upon completion of the measurements, the probe zero depth indication at grade was verified prior to removal from the boring.

BORING NUMBER

RUN NUMBER

DEPTH RANGE (FEET)

B-1

1

4.9 – 328.1

DEPTH AS DRILLED (FEET) 341.8

LOST TO SLOUGH/COLLAPSE (FEET)

SAMPLE INTERVAL (FEET)

DATE LOGGED

1.6

1.64

7/15/04

Table 2. Logging dates and depth ranges

6

SUSPENSION DATA ANALYSIS The recorded digital records were analyzed to locate the first minima on the vertical axis records, indicating the arrival of P-wave energy. The difference in travel time between receiver 1 and receiver 2 (R1-R2) arrivals was used to calculate the P-wave velocity for that 3.28 ft segment of the soil column. When observable, P-wave arrivals on the horizontal axis records were used to verify the velocities determined from the vertical axis data. The P-wave velocity calculated from the travel time over the 7.02 ft interval from source to receiver 1 (S-R1) was calculated and plotted for quality assurance of the velocity derived from the travel time between receivers. In this analysis, the depth values as recorded were increased by 5.15 ft to correspond to the mid-point of the 7.02 ft S-R1 interval, as illustrated in Figure 1. Travel times were obtained by picking the first break of the P-wave signal at receiver 1 and subtracting 3.0 milliseconds, the calculated and experimentally verified delay from source trigger pulse (beginning of record) to source impact.

This delay corresponds to the duration of

acceleration of the solenoid before impact. The recorded digital records were studied to establish the presence of clear SH-wave pulses, as indicated by the presence of opposite polarity pulses on each pair of horizontal records. Ideally, the SH-wave signals from the 'normal' and 'reverse' source pulses are very nearly inverted images of each other. Digital FFT - IFFT lowpass filtering was used to remove the higher frequency Pwave signal from the SH-wave signal. Different filter cutoffs were used to separate P- and SHwaves at different depths, ranging from 700 Hz in the slowest zones to 2000 Hz in the regions of highest velocity. At each depth, the filter frequency was selected to be at least twice the fundamental frequency of the SH-wave signal being filtered.

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Generally, the first maxima was picked for the 'normal' signals and the first minima for the 'reverse' signals, although other points on the waveform were used if the first pulse was distorted. The absolute arrival time of the 'normal' and 'reverse' signals may vary by +/- 0.2 milliseconds, due to differences in the actuation time of the solenoid source caused by constant mechanical bias in the source or by boring inclination. This variation does not affect the R1-R2 velocity determinations, as the differential time is measured between arrivals of waves created by the same source actuation. The final velocity value is the average of the values obtained from the 'normal' and 'reverse' source actuations. As with the P-wave data, SH-wave velocity calculated from the travel time over the 7.02 ft interval from source to receiver 1 was calculated and plotted for verification of the velocity derived from the travel time between receivers. In this analysis, the depth values were increased by 5.15 ft to correspond to the mid-point of the 7.02 ft S-R1 interval. Travel times were obtained by picking the first break of the SH-wave signal at the near receiver and subtracting 3.0 milliseconds, the calculated and experimentally verified delay from the beginning of the record at the source trigger pulse to source impact. Figure 2 shows an example of R1 - R2 measurements on a sample filtered suspension record. In Figure 2, the time difference over the 3.28 ft interval of 1.88 milliseconds for the horizontal signals is equivalent to an SH-wave velocity of 1745 ft/sec. Whenever possible, time differences were determined from several phase points on the SH-waveform records to verify the data obtained from the first arrival of the SH-wave pulse. Figure 3 displays the same record before filtering of the SH-waveform record with an 1400 Hz FFT - IFFT digital lowpass filter, illustrating the presence of higher frequency P-wave energy at the beginning of the record, and distortion of the lower frequency SH-wave by residual P-wave signal.

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SUSPENSION RESULTS Suspension R1-R2 P- and SH-wave velocities are plotted in Figure 4. The suspension velocity data presented in this figure are presented in Table 3. P- and SH-wave velocity data from R1-R2 analysis and quality assurance analysis of S-R1 data are plotted together in Figure A1 to aid in visual comparison. It must be noted that R1-R2 data is an average velocity over a 3.28 ft segment of the soil column; S-R1 data is an average over 7.02 ft, creating a significant smoothing relative to the R1-R2 plots. S-R1 data are presented in Table A1. Good correspondence between the shape of the P- and SH-wave velocity curves is observed for both these data sets. The velocities derived from S-R1 and R1-R2 data are in excellent agreement, providing verification of the higher resolution R1-R2 data. Calibration procedures and records for the suspension measurement system are presented in Appendix B.

SUMMARY Discussion of Suspension Results Both P- and SH-wave velocities were measured using the OYO Suspension Method in one cased land boring at depths up to 328.1 ft below grade at the UCLA Botanical Garden. The boring was located in a busy urban area, however, no significant signal contamination from cultural vibration was observed. Saturated soil, as indicated by a Vp above 5400 ft/sec, appears to be present below a depth of approximately 105 ft. No basement rock was encountered in B-1.

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Quality Assurance These velocity measurements were performed using industry-standard or better methods for both measurements and analyses.

All work was performed under GEOVision quality assurance

procedures, which include: •

Use of NIST-traceable calibrations, where applicable, for field and laboratory instrumentation

•

Use of standard field data logs

•

Use of independent verification of data by comparison of receiver-to-receiver and source-toreceiver velocities

•

Independent review of calculations and results by a registered professional engineer, geologist, or geophysicist.

Data Reliability P- and SH-wave velocity measurement using the Suspension Method gives average velocities over a 3.28 ft interval of depth. This high resolution results in the scatter of values shown in the graphs.

Individual measurements are very reliable with estimated precision of +/- 5%.

Standardized field procedures and quality assurance checks add to the reliability of these data.

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Armored 7-Conductor cable OYO PS-170 Logger/Recorder Cable Head Diskette with Data

Head Reducer Winch

Upper (R2) Receiver 1.64 ft

Depth reference location for R1-R2 analysis: mid-point of Receivers

1.64 ft

Lower (R1) Receiver 3.51 ft

5.15 ft

Joint

Depth reference location for S-R1 analysis : mid point of 7.02 ft S-R1 spacing

3.28 ft flexible Isolation Cylinder 3.51 ft Joint Combined Sh and P-wave Source (S)

7.02 ft

Source Driver

3.44 ft

Weight Tip Overall Length ~ 19 ft

Not to Scale

Figure 1. Concept illustration of P-S logging system

11

12.1 ft

Figure 2. Example of filtered (1400 Hz lowpass) record

12

Figure 3. Example of unfiltered record

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UCLA BORING B-1, JULY 15, 2004 VELOCITY (FEET/SECOND) 0

1000

2000

3000

4000

5000

6000

7000

0

8000 0

5

R1-R2 Vs

10

R1-R2 Vp

15

25 50

20 75

25

100

35 125

40 45

150

50 175

55 60

200

65 225

70 75

250

80 275

85 90

300

95 325

100 105 0

250

500

750

1000

1250

1500

1750

2000

VELOCITY (METERS/SECOND)

Figure 4. Boring B-1, Suspension P- and SH-wave velocities

14

2250

2500

DEPTH BELOW GRADE (FEET)

DEPTH BELOW GRADE (METERS)

30

Depth (m)

(feet)

Far-Hn (millisec)

1.5 2.1 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.6 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 20.5 21.0 21.5 22.0 22.5 23.0 23.5 24.0 24.5 25.0 25.5 26.0

4.9 6.9 8.2 9.8 11.5 13.1 14.8 16.4 18.0 19.7 21.3 23.0 24.6 26.2 28.2 29.5 31.2 32.8 34.4 36.1 37.7 39.4 41.0 42.7 44.3 45.9 47.6 49.2 50.9 52.5 54.1 55.8 57.4 59.1 60.7 62.3 64.0 65.6 67.3 68.9 70.5 72.2 73.8 75.5 77.1 78.7 80.4 82.0 83.7 85.3

20.30 17.05 16.78 14.26 13.58 13.48 12.96 12.70 12.76 12.95 12.85 13.10 13.10 12.90 12.75 12.72 12.58 12.92 13.02 13.24 13.46 13.06 13.10 12.64 12.06 11.86 11.78 11.60 11.36 10.64 10.64 10.58 10.78 10.86 10.70 10.70 10.72 10.76 10.48 10.10 11.72 13.32 10.24 10.28 10.26 10.54 10.60 10.80 12.08 12.36

Far-Hr (millisec) 20.35 18.25 17.86 15.54 14.80 14.76 13.98 13.42 14.00 13.85 13.60 13.65 13.96 13.56 13.90 12.34 12.36 11.88 13.28 12.36 12.38 12.12 11.92 12.18 11.38 11.24 10.90 11.94 10.70 10.76 11.20 11.32 11.32 11.28 11.34 11.38 11.48 11.12 12.58 10.80 12.74 10.88 10.76 10.54 11.10 10.58 10.96 11.58 12.10

Pick Times Far-V Near-Hn (millisec) (millisec) 12.50 11.86 10.23 10.00 9.43 9.30 8.80 7.93 7.73 7.40 7.10 7.26 7.00 7.30 7.34 7.39 7.42 7.49 7.36 7.46 7.54 7.50 7.40 7.39 7.70 7.08 7.35 7.23 7.04 6.98 6.89 6.21 6.39 6.23 6.06 6.01 6.35 6.52 6.67 6.94 6.74 7.26 7.28 7.23 6.27 6.36 6.02 5.50 5.36 5.53

14.75 12.90 12.84 10.74 10.34 10.00 9.80 9.80 9.96 10.35 10.30 10.35 10.12 9.62 9.75 9.90 9.88 10.00 10.52 10.46 10.18 10.16 9.90 9.80 9.52 9.54 9.26 9.16 8.72 8.40 8.48 8.36 8.76 8.90 8.66 8.64 8.48 8.24 8.08 8.14 9.56 11.52 8.14 8.54 8.30 8.66 8.76 8.64 9.80 10.10

Near-Hr (millisec)

Near-V (millisec)

V-SH (m/sec)

13.95 13.30 13.94 12.20 11.30 11.08 10.84 10.78 11.20 11.20 11.20 11.30 10.90 10.40 10.50 9.36 9.28

9.46 9.26 7.85 7.83 7.43 7.13 6.97 6.23 6.00 5.86 5.70 5.96 5.63 6.03 5.90 5.99 6.00 6.01 6.08 6.07 5.97 5.97 5.96 5.88 6.21 5.67 5.80 5.89 5.81 5.79 5.73 5.13 5.34 5.15 5.02 5.21 5.52 5.71 5.80 6.02 5.86 6.58 6.62 6.55 5.61 5.40 5.19 4.84 4.72 4.95

167 220 254 292 297 279 317 361 357 381 404 392 331 311 313 345 346 342 408 364 301 357 336 350 391 431 408 429 385 478 481 478 505 524 476 485 452 403 433 518 515 500 488 568 508 515 621 500 452 439

9.48 10.56 9.00 9.68 9.36 9.04 9.60 9.06 8.86 8.68 9.38 8.76 8.76 9.24 9.38 9.46 9.12 9.28 9.20 9.04 8.90 10.68 9.08 10.54 8.88 8.98 8.56 9.10 9.20 9.12 9.44 9.80

Table 3. Boring B-1, Suspension R1-R2 depth, pick times, and velocities

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Velocity V-P V-SH (m/sec) (ft/sec) 329 385 420 461 500 461 546 588 578 649 714 769 730 787 694 714 704 676 781 719 637 654 694 662 671 709 645 746 813 840 862 926 952 926 962 1250 1205 1235 1149 1087 1136 1471 1515 1471 1515 1042 1205 1515 1562 1724

549 721 835 957 974 916 1042 1184 1172 1250 1326 1287 1086 1019 1025 1131 1135 1124 1339 1193 988 1172 1101 1147 1282 1414 1339 1408 1262 1570 1577 1570 1657 1718 1562 1593 1485 1323 1420 1700 1691 1640 1600 1864 1665 1691 2038 1640 1485 1439

V-P (ft/sec) 1079 1262 1379 1512 1640 1512 1793 1930 1896 2130 2343 2524 2395 2583 2278 2343 2310 2217 2563 2360 2090 2144 2278 2173 2202 2327 2117 2448 2667 2757 2828 3038 3125 3038 3155 4101 3953 4050 3771 3566 3728 4825 4971 4825 4971 3418 3953 4971 5126 5657

Depth (m)

(feet)

Far-Hn (millisec)

26.5 27.0 27.5 28.0 28.5 29.0 29.5 30.0 30.5 31.0 31.5 32.0 32.5 33.0 33.5 34.0 34.5 35.0 35.5 36.0 36.5 37.0 37.5 38.0 38.5 39.0 39.5 40.0 40.5 41.0 41.5 42.0 42.5 43.0 43.4 44.0 44.5 45.0 45.5 46.0 46.5 47.0 47.5 48.0 48.5 49.0 49.5 50.0 50.5 51.0

86.9 88.6 90.2 91.9 93.5 95.1 96.8 98.4 100.1 101.7 103.3 105.0 106.6 108.3 109.9 111.5 113.2 114.8 116.5 118.1 119.8 121.4 123.0 124.7 126.3 128.0 129.6 131.2 132.9 134.5 136.2 137.8 139.4 141.1 142.4 144.4 146.0 147.6 149.3 150.9 152.6 154.2 155.8 157.5 159.1 160.8 162.4 164.0 165.7 167.3

12.76 13.32 13.12 12.82 12.52 12.10 11.68 10.70 10.30 10.28 10.38 10.28 9.98 10.24 10.26 10.44 9.84 9.76 9.80 9.96 10.08 10.30 10.72 11.08 11.14 11.20 11.36 11.38 11.40 11.42 11.48 11.48 11.40 11.38 10.08 9.96 10.02 9.94 9.96 10.02 9.90 9.88 9.82 9.78 9.78 9.74 9.68 9.66 9.62 9.58

Far-Hr (millisec) 12.80 12.52 12.80 12.66 12.60 11.92 11.34 10.22 10.20 10.18 10.06 10.04 9.84 10.08 10.12 9.88 9.46 9.36 9.52 9.74 9.84 10.02 10.56 10.90 10.98 11.12 11.26 11.26 11.26 11.26 11.28 11.30 11.30 11.38 11.40 11.32 11.30 10.72 10.12 10.16 10.08 10.06 10.02 9.94 9.90 9.92 9.84 9.80 9.80 9.80

Pick Times Far-V Near-Hn (millisec) (millisec) 5.24 5.14 5.16 5.78 5.61 5.58 5.47 5.13 5.16 4.99 5.15 5.09 5.07 5.16 5.15 5.01 5.08 5.06 4.85 4.85 4.83 4.80 4.88 4.93 4.93 4.88 4.91 4.92 4.88 4.92 4.91 4.90 4.91 4.91 4.92 4.88 4.91 4.89 4.90 4.93 4.94 4.93 4.92 4.92 4.94 4.92 4.91 4.90 4.89 4.89

10.22 10.78 10.24 9.86 9.64 9.50 8.78 8.70 8.44 8.68 8.56 8.74 8.54 8.38 8.34 7.88 7.56 7.64 7.54 7.90 8.36 8.70 8.66 8.76 8.72 8.78 8.90 8.92 9.00 8.98 9.00 8.78 9.08 9.28 7.80 7.80 7.82 7.82 7.76 7.70 7.70 7.70 7.64 7.50 7.42 7.40 7.42 7.44 7.46 7.42

Near-Hr (millisec)

Near-V (millisec)

V-SH (m/sec)

10.02 10.36 10.04 9.72 9.42 9.14 8.34 8.32 8.38 8.32 8.40 8.58 8.32 8.44 8.24 7.50 7.44 7.58 7.52 7.70 8.30 8.56 8.76 8.98 8.84 8.88 8.88 8.88 8.94 9.00 9.02 8.94 9.08 9.18 9.34 9.34 9.34 8.60 7.84 7.86 7.84 7.86 7.82 7.76 7.68 7.72 7.70 7.68 7.72 7.70

4.67 4.45 4.47 5.13 4.97 4.93 4.80 4.39 4.39 4.33 4.56 4.57 4.53 4.61 4.60 4.45 4.47 4.51 4.30 4.28 4.34 4.31 4.36 4.36 4.35 4.31 4.35 4.37 4.33 4.35 4.36 4.36 4.34 4.33 4.33 4.32 4.35 4.32 4.33 4.37 4.37 4.37 4.35 4.34 4.35 4.35 4.33 4.35 4.35 4.33

376 426 355 339 330 372 339 513 543 578 575 667 676 571 526 405 465 513 469 488 613 654 518 472 439 429 413 413 424 426 422 395 441 465 461 483 481 472 446 433 450 457 457 448 437 441 455 461 472 469

Velocity V-P V-SH (m/sec) (ft/sec) 1754 1449 1449 1538 1562 1538 1493 1351 1299 1515 1695 1923 1852 1818 1818 1786 1639 1818 1818 1754 2041 2041 1923 1754 1724 1754 1786 1818 1818 1754 1818 1852 1754 1724 1695 1786 1786 1754 1754 1786 1754 1786 1754 1724 1695 1754 1724 1818 1852 1786

Table 3, continued. Boring B-1, Suspension R1-R2 depth, pick times, and velocities

16

1233 1396 1163 1112 1083 1220 1112 1682 1783 1896 1886 2187 2217 1875 1727 1328 1526 1682 1540 1600 2013 2144 1700 1548 1439 1408 1356 1356 1390 1396 1384 1297 1445 1526 1512 1585 1577 1548 1465 1420 1478 1498 1498 1471 1433 1445 1491 1512 1548 1540

V-P (ft/sec) 5756 4755 4755 5047 5126 5047 4897 4434 4261 4971 5561 6309 6076 5965 5965 5859 5378 5965 5965 5756 6696 6696 6309 5756 5657 5756 5859 5965 5965 5756 5965 6076 5756 5657 5561 5859 5859 5756 5756 5859 5756 5859 5756 5657 5561 5756 5657 5965 6076 5859

Depth (m)

(feet)

Far-Hn (millisec)

51.5 52.0 52.5 53.0 53.5 54.0 54.5 55.0 55.5 56.0 56.5 57.0 57.5 58.0 58.5 59.0 59.5 60.0 60.5 61.0 61.5 62.0 62.5 63.0 63.5 64.0 64.5 65.0 65.5 66.0 66.5 67.0 67.5 68.0 68.5 69.0 69.5 70.0 70.5 71.0 71.5 72.0 72.5 73.0 73.5 74.0 74.5 75.0 75.5 76.0

169.0 170.6 172.2 173.9 175.5 177.2 178.8 180.4 182.1 183.7 185.4 187.0 188.6 190.3 191.9 193.6 195.2 196.9 198.5 200.1 201.8 203.4 205.1 206.7 208.3 210.0 211.6 213.3 214.9 216.5 218.2 219.8 221.5 223.1 224.7 226.4 228.0 229.7 231.3 232.9 234.6 236.2 237.9 239.5 241.1 242.8 244.4 246.1 247.7 249.3

9.60 9.58 9.60 9.60 10.00 9.52 9.60 10.22 10.10 10.02 10.08 10.12 10.08 10.10 10.10 10.06 10.18 10.20 10.20 10.16 10.18 10.14 10.18 10.18 10.22 10.14 10.20 10.12 10.14 10.14 10.20 10.24 10.36 10.16 10.18 10.18 10.08 10.18 10.34 10.14 10.22 10.26 10.14 10.08 10.08 10.20 10.12 10.28 10.36 10.24

Far-Hr (millisec) 9.84 9.80 9.84 9.84 9.46 9.78 10.12 10.48 10.34 10.04 10.06 10.14 10.10 10.14 10.14 10.16 10.10 10.12 10.18 10.20 10.18 10.22 10.22 10.24 10.22 10.16 10.22 10.18 10.22 10.26 10.26 10.22 10.24 10.20 10.24 10.24 10.30 10.28 10.22 10.14 10.18 10.28 10.30 10.24 10.24 10.24 10.12 10.14 10.32 10.30

Pick Times Far-V Near-Hn (millisec) (millisec) 4.90 4.90 4.90 4.88 4.88 4.89 4.86 4.87 4.86 4.87 4.86 4.88 4.87 4.87 4.87 4.85 4.88 4.88 4.89 4.86 4.90 4.88 4.90 4.90 4.89 4.88 4.87 4.85 4.84 4.86 4.85 4.84 4.86 4.86 4.87 4.85 4.85 4.87 4.84 4.85 4.84 4.83 4.83 4.85 4.84 4.87 4.86 4.87 4.86 4.86

7.42 7.34 7.40 7.34 8.04 7.32 7.28 7.60 7.72 7.76 7.76 7.80 7.78 7.90 7.78 7.70 7.74 7.68 7.70 7.76 7.82 7.78 7.70 7.72 7.68 7.64 7.64 7.62 7.50 7.52 7.56 7.56 7.54 7.54 7.58 7.54 7.52 7.52 7.52 7.56 7.54 7.52 7.62 7.66 7.66 7.64 7.64 7.58 7.66 7.60

Near-Hr (millisec)

Near-V (millisec)

V-SH (m/sec)

7.74 7.68 7.66 7.64 7.52 7.54 7.84 7.68 7.92 7.98 7.98 7.98 7.98 8.00 7.94 7.94 7.94 7.92 7.90 7.92 7.90 7.86 7.92 7.96 7.94 7.88 7.88 7.76 7.66 7.62 7.76 7.82 7.82 7.76 7.72 7.66 7.64 7.68 7.72 7.72 7.68 7.64 7.68 7.70 7.74 7.76 7.76 7.64 7.78 7.68

4.34 4.33 4.35 4.33 4.32 4.30 4.34 4.31 4.30 4.31 4.32 4.34 4.29 4.30 4.32 4.32 4.33 4.33 4.33 4.31 4.36 4.35 4.35 4.34 4.37 4.31 4.35 4.29 4.30 4.29 4.26 4.29 4.31 4.30 4.31 4.30 4.29 4.31 4.29 4.30 4.29 4.28 4.29 4.31 4.30 4.31 4.31 4.32 4.31 4.31

467 459 457 448 513 450 435 369 417 463 455 446 452 461 442 437 435 424 418 427 431 424 418 422 415 418 408 407 385 380 389 394 382 395 391 383 383 380 376 400 386 372 389 403 407 397 413 385 382 380

Velocity V-P V-SH (m/sec) (ft/sec) 1786 1754 1818 1818 1786 1695 1923 1786 1786 1786 1852 1852 1724 1754 1818 1887 1818 1818 1786 1818 1852 1887 1818 1786 1923 1754 1923 1786 1852 1754 1695 1818 1818 1786 1786 1818 1786 1786 1818 1818 1818 1818 1852 1852 1852 1786 1818 1818 1818 1818

Table 3, continued. Boring B-1, Suspension R1-R2 depth, pick times, and velocities

17

1533 1505 1498 1471 1682 1478 1426 1211 1367 1519 1491 1465 1485 1512 1452 1433 1426 1390 1373 1402 1414 1390 1373 1384 1361 1373 1339 1334 1262 1247 1277 1292 1252 1297 1282 1257 1257 1247 1233 1312 1267 1220 1277 1323 1334 1302 1356 1262 1252 1247

V-P (ft/sec) 5859 5756 5965 5965 5859 5561 6309 5859 5859 5859 6076 6076 5657 5756 5965 6190 5965 5965 5859 5965 6076 6190 5965 5859 6309 5756 6309 5859 6076 5756 5561 5965 5965 5859 5859 5965 5859 5859 5965 5965 5965 5965 6076 6076 6076 5859 5965 5965 5965 5965

Depth (m)

(feet)

Far-Hn (millisec)

76.5 77.0 77.5 78.0 78.5 79.0 79.5 80.0 80.5 81.0 81.5 82.0 82.5 83.0 83.5 84.0 84.5 85.0 85.5 86.0 86.5 87.0 87.5 88.0 88.5 89.0 89.5 90.0 90.5 91.0 91.5 92.0 92.5 93.0 93.5 94.0 94.5 95.0 95.5 96.0 96.5 97.0 97.5 98.0 98.5 99.0 99.5 100.0

251.0 252.6 254.3 255.9 257.5 259.2 260.8 262.5 264.1 265.7 267.4 269.0 270.7 272.3 274.0 275.6 277.2 278.9 280.5 282.2 283.8 285.4 287.1 288.7 290.4 292.0 293.6 295.3 296.9 298.6 300.2 301.8 303.5 305.1 306.8 308.4 310.0 311.7 313.3 315.0 316.6 318.2 319.9 321.5 323.2 324.8 326.4 328.1

10.32 10.08 9.88 9.38 9.66 9.44 9.62 9.60 9.54 9.56 9.54 9.54 9.42 9.40 9.46 9.42 9.32 9.30 9.40 9.52 9.50 9.50 9.44 9.46 9.44 9.50 9.50 9.52 9.50 9.42 9.42 9.42 9.44 9.44 9.40 9.40 9.42 9.42 9.36 9.36 9.38 9.32 9.28 9.32 9.32 9.40 9.25 9.05

Far-Hr (millisec) 10.38 10.20 10.74 9.74 9.78 9.72 9.70 9.66 9.68 9.68 9.64 9.64 9.60 9.58 9.56 9.52 9.46 9.42 9.50 9.62 9.56 9.58 9.54 9.52 9.56 9.60 9.60 9.60 9.58 9.54 9.58 9.56 9.52 9.50 9.48 9.48 9.48 9.48 9.46 9.42 9.54 9.40 9.38 9.42 9.41 9.50 9.39 9.18

Pick Times Far-V Near-Hn (millisec) (millisec) 4.86 4.86 4.86 4.85 4.85 4.86 4.84 4.86 4.85 4.84 4.82 4.84 4.82 4.83 4.82 4.83 4.82 4.82 4.83 4.83 4.83 4.81 4.81 4.82 4.82 4.82 4.73 4.82 4.84 4.82 4.84 4.84 4.82 4.82 4.83 4.83 4.82 4.82 4.82 4.81 4.82 4.83 4.83 4.83 4.83 4.84 4.84 4.81

7.60 7.56 7.52 7.28 7.50 7.30 7.46 7.50 7.50 7.54 7.50 7.54 7.50 7.48 7.46 7.46 7.46 7.48 7.46 7.44 7.46 7.44 7.42 7.44 7.44 7.46 7.48 7.52 7.52 7.46 7.42 7.46 7.40 7.40 7.42 7.38 7.36 7.38 7.42 7.36 7.38 7.40 7.30 7.32 7.34 7.34 7.17 7.09

Near-Hr (millisec)

Near-V (millisec)

V-SH (m/sec)

7.72 7.70 8.24 7.62 7.66 7.62 7.60 7.64 7.64 7.66 7.58 7.60 7.60 7.60 7.56 7.60 7.58 7.54 7.54 7.54 7.52 7.52 7.52 7.54 7.58 7.58 7.62 7.64 7.64 7.58 7.58 7.60 7.50 7.52 7.54 7.50 7.50 7.46 7.54 7.46 7.54 7.50 7.46 7.46 7.44 7.44 7.36 7.20

4.30 4.31 4.31 4.30 4.30 4.30 4.28 4.30 4.29 4.29 4.27 4.28 4.27 4.28 4.27 4.28 4.27 4.28 4.28 4.28 4.28 4.25 4.26 4.26 4.28 4.27 4.18 4.27 4.29 4.26 4.28 4.29 4.26 4.27 4.29 4.27 4.28 4.28 4.27 4.26 4.27 4.28 4.28 4.28 4.27 4.29 4.29 4.27

372 398 412 474 467 472 469 485 490 495 488 495 510 513 500 515 535 541 513 481 490 485 495 500 503 493 500 505 510 510 500 510 493 498 510 500 495 493 518 505 500 524 513 505 506 485 487 508

Velocity V-P V-SH (m/sec) (ft/sec) 1786 1818 1818 1818 1818 1786 1786 1786 1786 1818 1818 1786 1818 1818 1818 1818 1818 1852 1818 1818 1818 1786 1818 1786 1852 1818 1818 1818 1818 1786 1786 1818 1786 1818 1852 1786 1852 1852 1818 1818 1818 1818 1818 1818 1802 1818 1818 1852

Table 3, continued. Boring B-1, Suspension R1-R2 depth, pick times, and velocities

18

1220 1307 1350 1555 1533 1548 1540 1593 1608 1624 1600 1624 1674 1682 1640 1691 1754 1773 1682 1577 1608 1593 1624 1640 1649 1616 1640 1657 1674 1674 1640 1674 1616 1632 1674 1640 1624 1616 1700 1657 1640 1718 1682 1657 1661 1593 1597 1665

V-P (ft/sec) 5859 5965 5965 5965 5965 5859 5859 5859 5859 5965 5965 5859 5965 5965 5965 5965 5965 6076 5965 5965 5965 5859 5965 5859 6076 5965 5965 5965 5965 5859 5859 5965 5859 5965 6076 5859 6076 6076 5965 5965 5965 5965 5965 5965 5911 5965 5965 6076

APPENDIX A SUSPENSION VELOCITY MEASUREMENT QUALITY ASSURANCE SUSPENSION SOURCE TO RECEIVER ANALYSIS RESULTS

UCLA BORING B-1, JULY 15, 2004 VELOCITY (FEET/SECOND) 0

1000

2000

3000

4000

5000

6000

7000

0

8000 0

R1-R2 Vs

5

R1-R2 Vp

10

25

S-R1 Vs

15

S-R1 Vp

50

20 75

25

100

35 125

40 45

150

50 175

55 60

200

65 225

70 75

250

80 275

85 90

300

95 325

100 105 0

250

500

750

1000

1250

1500

1750

2000

VELOCITY (METERS/SECOND)

Figure A-1. Boring B-1, R1 - R2 high resolution analysis and S-R1 quality assurance analysis P- and SH-wave data A-2

2250

2500

DEPTH BELOW GRADE (FEET)

DEPTH BELOW GRADE (METERS)

30

Velocity

Velocity

Velocity

Depth V-SH V-p Depth V- SH V-p (meters) (m/sec) (m/sec) (feet) (ft/sec) (ft/sec) 3.1

Velocity

Depth V-SH V-p Depth V- SH V-p (meters) (m/sec) (m/sec) (feet) (ft/sec) (ft/sec)

388

10.1

1271

23.1

554

1528

75.7

1816

5014

3.7

314

472

12.1

1032

1548

23.6

540

1226

77.4

1771

4022

4.1

322

527

13.4

1056

1728

24.1

540

1572

79.0

1771

5159

4.6

333

536

15.0

1092

1758

24.6

540

1550

80.7

1771

5085

5.1

349

596

16.7

1145

1956

25.1

519

1418

82.3

1703

4653

5.6

363

631

18.3

1191

2070

25.6

480

1466

83.9

1575

4810

6.1

396

691

20.0

1299

2267

26.1

448

1572

85.6

1471

5159

6.6

383

756

21.6

1258

2481

26.6

460

1561

87.2

1508

5122

7.1

347

783

23.2

1137

2570

27.1

460

1619

88.9

1508

5313

7.6

349

828

24.9

1145

2717

27.6

429

1619

90.5

1407

5313

8.1

350

882

26.5

1148

2894

28.1

411

1656

92.1

1348

5435

8.6

347

816

28.2

1139

2676

28.6

377

1709

93.8

1236

5606

9.1

353

767

29.8

1160

2516

29.1

372

1596

95.4

1219

5235

9.6

386

778

31.4

1267

2552

29.6

396

1507

97.1

1299

4944

10.2

381

816

33.4

1249

2676

30.1

408

1550

98.7

1338

5085

10.6

367

759

34.7

1203

2489

30.6

448

1517

100.3

1471

4979

11.1

367

756

36.4

1203

2481

31.1

478

1561

102.0

1568

5122

11.6

363

761

38.0

1191

2498

31.6

489

1682

103.6

1603

5519

12.1

347

743

39.6

1137

2438

32.1

491

1695

105.3

1611

5562

12.6

347

751

41.3

1137

2463

32.6

509

1750

106.9

1671

5741

13.1

357

795

42.9

1171

2608

33.1

489

1722

108.5

1603

5650

13.6

359

778

44.6

1179

2552

33.6

478

1695

110.2

1568

5562

14.1

381

789

46.2

1249

2589

34.1

484

1764

111.8

1589

5788

14.6

396

783

47.9

1299

2570

34.6

490

1779

113.5

1607

5836

15.1

399

786

49.5

1309

2580

35.1

523

1779

115.1

1716

5836

15.6

403

838

51.1

1323

2749

35.6

574

1904

116.7

1883

6245

16.1

421

838

52.8

1380

2749

36.1

624

1955

118.4

2046

6414

16.6

432

838

54.4

1418

2749

36.6

627

1793

120.0

2058

5884

17.1

458

838

56.1

1502

2749

37.1

603

1904

121.7

1978

6245

17.6

461

977

57.7

1512

3207

37.6

537

1991

123.3

1762

6532

18.1

460

960

59.3

1508

3150

38.1

487

1793

125.0

1596

5884

18.6

448

1160

61.0

1471

3807

38.6

452

1779

126.6

1483

5836

19.1

439

1186

62.6

1441

3890

39.1

438

1764

128.2

1435

5788

19.6

439

1179

64.3

1441

3869

39.6

377

1793

129.9

1236

5884

20.1

454

1284

65.9

1489

4213

40.1

432

1808

131.5

1418

5933

20.6

460

1199

67.5

1508

3933

40.6

427

1808

133.2

1401

5933

21.1

482

1142

69.2

1582

3747

41.1

422

1793

134.8

1385

5884

21.6

519

1130

70.8

1703

3708

41.6

422

1779

136.4

1385

5836

22.1

548

1179

72.5

1798

3869

42.1

419

1779

138.1

1374

5836

22.6

540

1373

74.1

1771

4506

42.6

425

1764

139.7

1396

5788

Table A-1. Boring B-1, S - R1 quality assurance analysis P- and SH-wave data

A-3

Velocity

Velocity

Velocity

Depth V-SH V-p Depth V- SH V-p (meters) (m/sec) (m/sec) (feet) (ft/sec) (ft/sec)

Velocity

Depth V-SH V-p Depth V- SH V-p (meters) (m/sec) (m/sec) (feet) (ft/sec) (ft/sec)

43.1

425

1764

141.4

1396

5788

63.1

434

1793

207.0

1424

5884

43.6

422

1824

143.0

1385

5983

63.6

432

1839

208.6

1418

6033

44.1

427

1808

144.6

1401

5933

64.1

436

1824

210.3

1430

5983

44.6

429

1839

146.3

1407

6033

64.6

438

1824

211.9

1435

5983

45.0

432

1839

147.6

1418

6033

65.1

438

1793

213.5

1435

5884

45.6

431

1839

149.6

1413

6033

65.6

438

1808

215.2

1435

5933

46.1

431

1824

151.2

1413

5983

66.1

443

1793

216.8

1453

5884

46.6

431

1839

152.8

1413

6033

66.6

448

1793

218.5

1471

5884

47.1

434

1824

154.5

1424

5983

67.1

434

1793

220.1

1424

5884

47.6

434

1824

156.1

1424

5983

67.6

446

1793

221.7

1462

5884

48.1

434

1855

157.8

1424

6085

68.1

444

1793

223.4

1456

5884

48.6

436

1839

159.4

1430

6033

68.6

448

1808

225.0

1471

5933

49.1

447

1824

161.0

1465

5983

69.1

454

1824

226.7

1489

5983

49.6

452

1855

162.7

1483

6085

69.6

452

1824

228.3

1483

5983

50.1

454

1839

164.3

1489

6033

70.1

450

1824

229.9

1477

5983

50.6

456

1839

166.0

1496

6033

70.6

454

1824

231.6

1489

5983

51.1

456

1855

167.6

1496

6085

71.1

460

1839

233.2

1508

6033

51.6

458

1839

169.2

1502

6033

71.6

458

1779

234.9

1502

5836

52.1

462

1871

170.9

1515

6137

72.1

458

1824

236.5

1502

5983

52.6

462

1871

172.5

1515

6137

72.6

450

1793

238.1

1477

5884

53.1

464

1855

174.2

1521

6085

73.1

448

1824

239.8

1471

5983

53.6

476

1839

175.8

1561

6033

73.6

444

1793

241.4

1456

5884

54.1

478

1824

177.4

1568

5983

74.1

437

1793

243.1

1432

5884

54.6

480

1824

179.1

1575

5983

74.6

438

1793

244.7

1438

5884

55.1

478

1824

180.7

1568

5983

75.1

435

1793

246.3

1427

5884

55.6

468

1824

182.4

1534

5983

75.6

444

1793

248.0

1456

5884

56.1

464

1824

184.0

1521

5983

76.1

444

1808

249.6

1456

5933

56.6

458

1839

185.6

1502

6033

76.6

444

1808

251.3

1456

5933

57.1

448

1824

187.3

1471

5983

77.1

446

1808

252.9

1462

5933

57.6

440

1839

188.9

1444

6033

77.6

451

1808

254.5

1480

5933

58.1

436

1824

190.6

1430

5983

78.1

449

1793

256.2

1474

5884

58.6

436

1824

192.2

1430

5983

78.6

451

1808

257.8

1480

5933

59.1

432

1839

193.8

1418

6033

79.1

457

1808

259.5

1499

5933

59.6

431

1824

195.5

1413

5983

79.6

470

1808

261.1

1541

5933

60.1

436

1824

197.1

1430

5983

80.1

459

1808

262.7

1505

5933

60.6

436

1824

198.8

1430

5983

80.6

468

1808

264.4

1534

5933

61.1

436

1808

200.4

1430

5933

81.1

459

1808

266.0

1505

5933

61.6

434

1824

202.1

1424

5983

81.6

459

1808

267.7

1505

5933

62.1

432

1824

203.7

1418

5983

82.1

457

1808

269.3

1499

5933

62.6

434

1793

205.3

1424

5884

82.6

457

1808

270.9

1499

5933

Table A-1, continued. Boring B-1, S - R1 quality assurance analysis P- and SH-wave data

A-4

Velocity

Velocity

Depth V-SH V-p Depth V- SH V-p (meters) (m/sec) (m/sec) (feet) (ft/sec) (ft/sec) 83.1

457

1824

272.6

1499

5983

83.6

453

1808

274.2

1486

5933

84.1

455

1824

275.9

1493

5983

84.6

459

1824

277.5

1505

5983

85.1

459

1824

279.2

1505

5983

85.6

459

1839

280.8

1505

6033

86.1

459

1871

282.4

1505

6137

86.6

463

1839

284.1

1518

6033

87.1

467

1839

285.7

1531

6033

87.6

469

1871

287.4

1538

6137

88.1

469

1824

289.0

1538

5983

88.6

469

1839

290.6

1538

6033

89.1

469

1871

292.3

1538

6137

89.6

463

1839

293.9

1518

6033

90.1

463

1839

295.6

1518

6033

90.6

462

1871

297.2

1515

6137

91.1

462

1887

298.8

1515

6191

91.6

457

1839

300.5

1499

6033

92.1

457

1839

302.1

1499

6033

92.6

463

1839

303.8

1518

6033

93.1

469

1887

305.4

1538

6191

93.6

467

1839

307.0

1531

6033

94.1

475

1839

308.7

1558

6033

94.6

473

1824

310.3

1551

5983

95.1

471

1824

312.0

1544

5983

95.6

475

1839

313.6

1558

6033

96.1

473

1839

315.2

1551

6033

96.6

475

1808

316.9

1558

5933

97.1

473

1824

318.5

1551

5983

97.6

473

1839

320.2

1551

6033

98.1

475

1839

321.8

1558

6033

98.6

473

1839

323.4

1551

6033

99.1

477

1871

325.1

1565

6137

99.6

475

1839

326.7

1558

6033

100.1

470

1847

328.4

1541

6059

100.6

470

1847

330.0

1541

6059

101.1

487

1831

331.6

1596

6008

101.6

499

1855

333.3

1637

6085

Table A-1, continued. Boring B-1, S - R1 quality assurance analysis P- and SH-wave data

A-5

APPENDIX B

OYO 170 VELOCITY LOGGING SYSTEM NIST TRACEABLE CALIBRATION PROCEDURE

B-1

TABLE B1 GEOVISION VELOCITY LOGGING EQUIPMENT DESCRIPTION AND CALIBRATION PROCEDURES EQUIPMENT

FUNCTION

CALIBRATION REQUIREMENTS

MAINTENANCE REQUIREMENTS

OYO Model 170 Suspension Logging Data Logger

Records data from probe and sends control signals to probe

Every twelve months, calibrate sample clock using an NTIS-traceable external signal counter and signal generator per attached procedure. (see Attachment B2)

Diagnose and repair by manufacturer’s authorized representative if sample clock is out of specification or instrument fails.

OYO Model 170 Suspension Logging Probe

Suspended in borehole to provide both seismic source and sense wave arrivals at two locations 1 meter apart

No sensor calibration is necessary, as amplitude is not important to the velocity measurement.

Repair as needed by manufacturer-trained personnel.

Winch System (several interchangeable models available)

The winch and cable suspend the probe in the borehole and connect it to the data logger

No calibration required

Repair as needed. Lubricate moving parts frequently, and keep cable clean.

B-2

ATTACHMENT B2 CALIBRATION PROCEDURE FOR GEOVISION’S VELOCITY LOGGING SYSTEM

1.0

OYO Model 170 Data Logger Unit

1.1

Purpose

The purpose of this calibration procedure is to verify that the sample clock of the OYO Model 170 is accurate to within 1%. 1.2

Calibration Frequency

The calibration described in this procedure shall be performed every twelve months minimum. 1.3 • • • 1.4 • • • • 1.5

Test Equipment Function Generator, Krohn Hite 5400B or equivalent Frequency Counter, HP 5315A or equivalent, current NIST traceable calibration Test cable, function generator to OYO 170 Data Logger input channels Procedure Connect function generator to OYO Model 170 data logger using test cable Set up function generator to produce a 100.0 Hz, 0.250 volt peak square wave Record a data record with 100 microsecond sample period Measure the square wave frequency in the digital data using the data logger’s screen display or utility software Calibration Criteria The measured square wave frequency in the digital data must fall between 99.0 and 101.0 Hz to be deemed acceptable. If outside this range, the data logger must be repaired and retested.

B-3

RO PRECISION BRATION

INC.

Calibration Report Customer: Account:

GEOVISION

Corona

11562 Knott Avenue. Suite 3, Garden Grove, CA 92841 Ph. (714) 901-5659 Fax (714) 901-5649

CA 92882

15214

Instrument:

BB9414 Digital Universal Test Center

Mfg: Tenma

Model: 72-5085

Serial #: MBOOO06378

Size:

Resltn:

Location:

Cust Ctrl:

Dept:

P.O.:

Job Number: L19625

Report Number: 146108

Report Date: 081903

Work Performed:

Inspected,

Parts Replaced:

None

Received

Condition:

cleaned,

Page

and calibrated.

1 of

1

Returned Condition: In tolerance

In tolerance

Function Tested Function Generator cont'

Multimeter AC/DC Volts & Current

Ampli tude

Resistance & Capacitance

Sine wave distortion&

flatness

Square wave symmetry, rise & fall time

Power Supply Voltage

Triangle wave linearity

Current

TTL rise & fall time, output level

Ripple Frequency Counter Frequency range & Accuracy / Input Sensitivity Function Generator Frequency Due Date

Ctrl #

Manufacture, Model #, & Description of standards used for calibration

Tl300

Hewlett Packard 33120A Arbitary Waveform Ge

011704

83836

J8300

Hewlett Packard 8657A Signal Generator

052704

137792

P5300

Tektronix THS710 Oscilloscope w/DMM

030504.

133387

L1600

Hewlett Packard 34401A Multimeter

121803

97906

Services

provided

All

performed

work

conform

to ANSI/NCSL

complies

Environmental:

with

MPC

Z540-1-1994, Quality

System

73 Deg F / 45% Rh

Uncertainty: Accuracy Ratio>

4:1

ISO QM

10012-1:1992 540-94,

Rev

or ISO/IEC

Test Date: Cycle:

applicable.

Form

~

081903

12

Due Date:

Technician:

Quality

E. CARDONA

as

le.

Cal Procedure: Manufacture Man HOMERO

17025

Traceability

081904

Approval:

Cert

2-25-02

All standards used are either traceable to the National Institute of Standards and Technology or have intrinsic accuracy. All services performed have used proper manufacturer and industrial service techniques and are warranted for no less than (30) days. This report may not be reproduced in part without written permission of Micro Precision's Quality Assurance Manager.

'sical services a diviSion of Blo.ckhawk

GeoServices

SEISMOGRAPH CALIBRATION DATA SHEET REV7/11/02 INSTRUMENTDATA

SYSTEMMFR:

OYO

SERIAL NO.:

Iz.~ 4-

MODEL NO.: CALIBRATION DATE: DUE DATE:

BY: ,Q. ~'f~ COUNTER MFR: T~"""" SERIAL NO.:

BY:

MODEL NO.: CALIBRATION DATE: DUE DATE:

;. '7 8

WlS 00000

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~,Ulo q~,c;10N

FCTN GEN MFR: 1"'WMASERIAL NO.: ~l>oooo (Q~7&

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V"1t(!,.Q.oPI2..tc.,SIO,..s GI>r'"

MODEL NO.: CALIBRATION DATE: DUE DATE:

SYSTEM SETTINGS: GAIN: FILTER: RANGE: DELAY: STACK: 1 (STD) PULSE: DISPLAY: SYSTEM, DATE = CORRECT DATE & TIME

~ 20 K.Hl. too "'" s.u, Q..

L

I. ~

~E:L

v~(2.., ~'\".-E...

~zl/o~

4-:?.4

~

.

PROCEDURE:

SET FREQUENCY TO 1OO.OHZSQUAREWA VE WITH AMPLITUDE APPROXIMATELY 0.25 VOLT PEAK. RECORD BOTH ON DISKETTE AND PAPER TAPE. ANALYZE AND PRINT WAVEFORMS FROM ANALYSIS UTILITY. ATTACH PAPER COPIES OF PRINTOUT AND PAPER TAPES TO THIS FORM. AVERAGE FREQUENCY MUST BE BETWEEN 99.0 AND 101.0 HZ. AS FOUND WAVEFORM

(00.

FILE NO

SG>t.A.

001

.0 90.0

10.1:> tfD.O

Die/1M DATE

1(X)

.0

TIME FOR 9 CYCLES V

. '" qo.o 10.0

100.0 /(1) . C IOC,D I(r) '0

8';.,

~~

SIGNATU

AVERAGE FREQ.

E

geophysical services a division of Blackhawk

GeoServices

SEISMOGRAPH CALIBRATION DATA SHEET REV 7/11/02 INSTRUMENT DATA \CfDZ,'t n..